EVCO EVF818P9 - Manual

EVCO S.p.A. | Code 104F818E103 | Page 1 of 2 | PT 03 / 12
EVF818 - Split controller for blast chillers (which can be integrated into the unit and with user interface having capacitive push buttons)
SIZE AND INSTALLATION
Size and installation user interface
Size in mm (in); installation is by back panel, with threaded studs.
Size and installation control module
Size in mm (in); installation is on flat surface, with spacers.
ELECTRICAL CONNECTION
Electrical connection
GB ENGLISH
IMPORTANT
Read this document carefully before installing and using the
device and follow all the additional information; keep this
document close to the device for future consultations.
For further information consult the “Installer manual”.
The device must be disposed according to the local
legislation about the collection for electrical and
electronic equipment.
1 SIZE AND INSTALLATION
1.1 Additional information for the installation
- make sure the working conditions of the device (operat-
ing temperature, operating humidity, etc.) are in the limits
indicated; look at chapter “TECHNICAL DATA”
- do not install the device close to heating sources (heat-
ers, hot air ducts, etc.), devices having big magnetos
(big speakers, etc.), locations subject to direct sunlight,
rain, humidity, dust, mechanical vibrations or bumps
- any metal parts in proximity of the control module must
be at a distance such that they do not compromise the
safety distances
- according to the safety legislation, the protection against
possible contacts with the electrical parts must be en-
sured by a correct installation of the device; all the parts
which ensure the protection must be fixed so that you
can not remove them if not by using a tool.
2 ELECTRICAL CONNECTION
2.1 Additional information for electrical connection
- do not operate on the terminal blocks of the device using
electrical or pneumatic screwers
- if the device has been moved from a cold location to a
warm one, the humidity could condense on the inside;
wait about an hour before supplying it
- make sure the power supply voltage, the electrical fre-
quency and the electrical power of the device correspond
to those of the local power supply; look at chapter “TECH-
NICAL DATA”
- disconnect the power supply of the device before serv-
icing it
- do not use the device as safety device
- for the repairs and for information about the device
please contact the EVCO sales network.
3 DESCRIPTION
3.1 Description user interface
Part Meaning
1 button ON / STAND-BY
2 button HARD / SOFT
3 port to communicate with the control module (sig-
nal)
4 button TIME / TEMPERATURE
5 display
6 button DOWN
7 button UP
8 button START / STOP
9 port to communicate with the control module (power
supply)
10 button PROGRAMS
11 button BLAST CHILLING INTENSITY
12 button BLAST FREEZING
13 button BLAST CHILLING
3.2 Description control module
Part Meaning
1 power supply
2 digital outputs K3 and K4
3 digital output K2
4 digital output K1
5 digital output K5
6 digital inputs
7 digital output K6
8 digital outputs K7 and K8
9 reserved
10 TTL serial port
11 reserved
12 analog inputs (room probe, evaporator probe and
condenser probe)
13 analog inputs (needle probe 1, needle probe 2 and
needle probe 3)
14 reserved
15 PWM analog output
16 RS-485 serial port with MODBUS communication
protocol and port to communicate with the user in-
terface (signal and power supply)
4 USER INTERFACE
4.1 Preliminary information
There are the following operating status:
-
status “off” (the device is not powered)
- status “stand-by” (the device is powered but it is switched
off)
- status “on” (the device is powered, it is switched on and
it is waiting an operating cycle is started)
- status “run” (the device is powered, it is switched on and
an operating cycle is running).
Hereinafter, “switching on the device” means moving from
status “stand-by” to status “on” and “switching off the de-
vice” means moving from status “on” to status “stand-by”.
4.2
Switching on / off the device
Operate as follows:
1.
Make sure the keyboard is not locked and no procedure
is running.
2. Press and hold button ON / STAND-BY 2 s: button ON /
STAND-BY will switch on / off.
4.3 The display
During status “off” and during status “stand-by” all the
displays are switched off.
During status “on”:
-
the 1 digit display will be switched off
- the 3 digits display:
-
will show the blast chilling cutoff temperature if a
temperature controlled blast chilling has been
selected or the blast freezing cutoff temperature
if a temperature controlled blast freezing has been
selected
- will show the blast chilling duration if a time con-
trolled blast chilling has been selected or the blast
freezing duration if a time controlled blast freez-
ing has been selected
- the 4 digits display:
-
will show the blast chilling working setpoint if a
temperature controlled blast chilling has been
selected or the blast freezing working setpoint if
a temperature controlled blast freezing has been
selected
- will be switched off if a time controlled blast chill-
ing or a time controlled blast freezing has been
selected.
During status “run”:
-
the 1 digit display will show the program number if
one is running
- the 3 digits display:
-
will show the temperature read by the needle
probe if a temperature controlled blast chilling or
a temperature controlled blast freezing is running
- will show the count down of the blast chilling du-
ration if a time controlled blast chilling is running
or the count down of the blast freezing duration if
a time controlled blast freezing is running
- the 4 digits display will show the room temperature.
4.4 Showing the room temperature
Operate as follows:
1.
Make sure the keyboard is not locked and no proce-
dure is running.
2. Press and hold button DOWN 2 s: the 3 digits display
will show the first available label.
3. Press and release button UP or button DOWN to select
“Pb1”.
4. Press and release button BLAST CHILLING: the 4 dig-
its display will show the room temperature.
To quit the procedure operate as follows:
5.
Press and release button BLAST CHILLING or do not
operate 60 s: the 4 digits display will switch off.
6. Press and release button UP or button DOWN as long
as the display shows the variable indicated in the para-
graph “The display” or do not operate 60 s.